In order to be used with WP 3.1 and BP 1.2.8.

I am still using 0.0.8.
In order for it to be used with WP 3.1 and BP 1.2.8:
1) Activate the plugin as Network.
2) Change the line 257 of bp-like.php as below:
`
[ Original ]
add_action( ‘admin_menu’, ‘bp_like_check_installed’ );
[ Changed to ]
add_action( ‘network_admin_menu’, ‘bp_like_check_installed’ );
`
3) Change the line 979 of bp-like.php as following:
`
[ Original ]
add_action( ‘admin_menu’, ‘bp_like_add_admin_page_menu’ );
[ Changed to ]
add_action( ‘network_admin_menu’, ‘bp_like_add_admin_page_menu’ );
`
That’s it. Now you can see admin menu within BuddyPress back-end.